Assuming all websites using reCAPTCHA are not worth using seems ridiculous to me.
You throw humans and robots in the same basket and tell all of them to solve a puzzle or you won't talk to them.
To suggest it's a "dismissive attitude" to not want to be hassled due to some other bad actor implies looking at it from the business perspective, and not necessarily from the perspective of the effect it has on users.
Note that certain adware/spyware domains, like google-analytics( look at the tags <maybe-spy> and <maybe-ads> ), are commented out, so edit the file as per your needs.
Google's re-capthas are coming from google.com, to block them add:
127.0.0.1 google.com
127.0.0.1 www.google.com
This may be a tough choice to make, depending on how integrated has Google become with your life ( note how I phrased this relationship ).